253456811 has 2 divisors, whose sum is σ = 253456812. Its totient is φ = 253456810.

The previous prime is 253456747. The next prime is 253456817. The reversal of 253456811 is 118654352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253456811 - 2⁶ = 253456747 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253456817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126728405 + 126728406.

It is an arithmetic number, because the mean of its divisors is an integer number (126728406).

Almost surely, 2^253456811 is an apocalyptic number.

253456811 is a deficient number, since it is larger than the sum of its proper divisors (1).

253456811 is an equidigital number, since it uses as much as digits as its factorization.

253456811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 35.

The square root of 253456811 is about 15920.3269752854. The cubic root of 253456811 is about 632.8507834597.

The spelling of 253456811 in words is "two hundred fifty-three million, four hundred fifty-six thousand, eight hundred eleven".